"Black hair?" joke

I heard this from a friend:
Three guys are playing basketball at a local outside court and they pause to
take a break. (Just for the sake of three names I'll use Moe, Larry,
Curly)...
Moe: Man, I wish I had a million bucks, I'd buy a car just like that
big Cadillac over there. What would you do if you had a
million bucks Larry?
Larry: If I had a million bucks I'd buy a car just like that Porsche
sitting over there. What would you do if you had a million
bucks Curly?
Curly: Gee, I don't know...I guess I'd have surgery to get thick
black hair all all over my body.
Moe: Why would you want black hair all over your body?
Curly: Well, my sister only has a patch about this big, and she owns
both those cars.